Rear gun-sight.



33-253 GR 190279891 SR G. W. PBCK, JR. & W. M. PARROW, SB. REAR GUNSIGHT.

APPLIOATI'ON FILED SEPT. 7, 1911.

Patented May 28, 1912.

n. 2-.- nEj mrg TEE UNTTED STATES PATENT @FFTQE.

GEORGE W. PEGK, JR., AND WILLARD M. FARROW, SR., OF WASHINGTON, DISTRICTOF COLUMBIA.

BEAR GUN-SIGHT.

Specification of Letters Patent. Patented May 28,1912.

Application fi1ed September '7, 1911.

To all whom it may concern:

Be it known that we, GEORGE W. PEoK, Jr., and WILLARD M. FARRow, Sn,citizens of the United States of America, and residents of the city ofWashington, in the District of Columbia, have invented certain new anduseful Improvements in Rear Grun- Sights, of which the following is aspecification.

This invention relates to certain new and useful improvements in sightsfor fire arms and it has for its objects among others to provide asimplified rear sight of that class which is provided with a verticaland a lateral adjustment and yet is simple and com pact in itsconstruction, readily applied to a gun barrel and reliable and efficientin its operation, while not liable to become dam aged or to get out oforder.

We provide a pivoted member normally seated within a mortise ordepression in the upper face of the barrel and adapted to be raised orlowered at the rear end by means of a screw which passes through theforward end thereof and engaging the bottom wall of the mortise. Thismembers is let down into the mortise so that its upper surface is flushwith the upper surface of the barrel. The rear part of this membercarries and supports the carriage which sup ports the revoluble disk andthis carriage is designed to be moved sidewise for windage purposesindependently of the said pivoted member. The revolving disk is used foropen sights and peepholes and always maintains a vertical position wit-hrelation to the barrel.

Other objects and advantages of the invention will hereinafter appearand the novel features thereof will be particularly pointed out in theappended claims.

The invention is capable of embodiment in a variety of forms, the mostpreferable of which only is herein illustrated. Such form is clearlyillustrated in the accompanying drawings, which, with the numerals ofreference marked thereon, form a part of this specification, and inwhich Figure 1 is a side elevation showing a portion of a barrel withour improvement applied thereto. Fig. 2 is a central verticallongitudinal section through the same showing the sight elevated, thesection being on the line 2-2 of Fig. 3. Fig. 3 is a top 55 plan. Fig. 4is a vertical cross section on Serial No. 648,031.

the line H of Fig. 1. Fig. 5 is a vertical section similar to Fig. 1,showing a slightly modified form. Fig. 6 is an enlarged face view of therevoluble disk.

Like numerals of reference indicate like parts throughout the differentviews.

Referring to the drawings, 1 designates the barrel of a fire arm, theremainder of which, except as hereinafter specified, is of any wellknown form of construction. The upper face of the barrel is formed witha mortise or depression 2 into which the plate or member 3 is designedto fit with its upper face flush with the upper face of the barrel, asindicated in Figs. 1 and 3, when said member is in its closed position.This plate or member 3 is pivotally mounted near its forward end withinthe said mortise or depression, the pivotal mounting being of anywell-known or approved form of construction, 4t designating the pivotupon which the plate is designed to move.

5 is a thumb screw working through the forward end of the plate ormember 3 and engaging the bottom wall of the mortise or depression, itbeing understood that turning of this screw in one direction or theother moves the plate or member 3 upon its pivot so as to raise or lowerthe rear end thereof. The rear end of the plate or member 3 is providedwith a transverse recess or ele vated portion 6 having the dovetailedgroove or channel 7 in which is mounted for movement the correspondinglyshaped base 8 from which rise the uprights 9, 9. Between these uprightsis revolubly mounted a disk 10. Any suitable means may be provided forpivotally mounting this disk or for holding or looking it in itsadjusted position. In the present instance, we have chosen to show thedisk as mounted upon a pivot 11 extending through alined openings in theuprights 9, 9 and through a central opening 12 in the disk 10. As seenin Fig. 2, this pivot is bent upon itself, as shown at 13, the returnmember 14: forming a locking pin which works through an opening in theadjacent upright 9 and engages in one of the openings 15 in the disk.The other end of the pivot 11 is headed, as seen at 16, and engages aspring 17, the ends of which engage the opposite sides of the adjacentupright 9, as seen best in Figs. 1 and 3. The natural tendency of thisspring is to hold the locking member 1 1 in engagement with its openingin the disk. V'Vhen it is desired to revolve the disk, pressure isapplied to the spring in the direction indicated by the arrow in Fig. 2,which moves the inner end of the locking member 14: out of engagementwith its opening in the disk, leaving the latter free to be turned ineither direction. Vhen the disk has been moved to its desired position,pressure on the spring is released, when the latter forces the end ofthe locking member 1 1 into engagement with the appropriate opening inthe disk. It will be noted upon reference to Fig. 6 that the openings 15in the disk are disposed in radial alinement with the central opening 12and on radial lines midway between the sight apertures 18, 19, 20, 21and 22 which are of different sizes and shapes, as seen best in Fig. 6.

23 is a spring disposed within the mortise 2 of the barrel and uponwhich rests the plate or member 3. One end of this spring is hooked orbent under, as seen at 24, and engages in a transverse notch 25 in thebot tom wall of the mortise, so as to prevent endwise displacement ofthe spring, the other end of the spring sliding freely upon the bottomwall of the recess or mortise, as will be clearly understood uponreference to Fig. 2.

In Fig. 5 we have shown a modified form of construction of means forholding the revoluble disk in place. This consists merely of a thumbscrew 26, the shank of which serves as the pivot on which the revolubledisk turns, and frictional engagement of the head of the thumb screwwith the disk serves to tighten it and hold it against movement.

In order to adjust the disk 10 and its supports laterally for windagepurposes, we have provided simple and eflicient means which permits ofthe adjustment laterally of the said disk and its carrier only, theplate or member 3 remaining stationary. This adjusting mechanism isclearly shown in Fig. 1 wherein it will be seen that depending from themember 6 are the lugs 27 in which is rotatably mounted a screw 28 havingat its opposite ends the knurled thumb wheels 29 and 30, by which it maybe turned in either direction, as may be desired. This screw hasthreaded engagement with a lug 31 depending from the base 8 whichcarries the uprights 9 and the revoluble disk, said lug 31 workingthrough a slot in the member 6 whereby adjustment of the screw in eitherdirection moves the lug 31 one way or the other and gives acorresponding movement to the base 8 and, consequently, to the disk andthe uprights between which it is mounted.

The rear parts of the sight are designed to be disposed when the plate 3is in its normal or horizontal position within a transverse groove 32 inthe upper face of the barrel, as

seen clearly in Fig. 1, where the plate is in its normal position and aswill be readily understood upon reference to Fig. 2 where the rear endof the plate with the revoluble sight and its accessories will be foundin an elevated position.

The mode of operation will be apparent from the foregoing descriptionwhen taken in connection with the annexed drawings and a furtherdetailed description thereof does not seem necessary.

From the foregoing it will be seen that we have devised a simple,compact, cheap, yet durable, efiicient and reliable gun sight, and whilethe structural embodiment of the invention as hereinbefore disclosed iswhat we at the present time consider preferable, it is evident that thesame is subject to changes, variations and modifications in details,proportion of parts, etc., without departing from the spirit of theinvention or sacrificing any of its advantages. We, therefore, do notintend to restrict ourselves to the exact details hereinbefore setforth, but reserve the right to make such changes, variations andmodifications as come properly within the scope of the protectionprayed.

hat is claimed as new is 1. A gun barrel having a mortise and atransverse notch, a plate pivotally mounted in said mortise, a springbeneath said plate within said mortise and having one end re ceived insaid notch and a sight carried by the end of said plate and normallyreceivable within a transverse groove in the barrel.

2. A sight for fire arms embodying a pivotally mounted plate, a thumbscrew near one end engaging the barrel and working through said platefor lowering it, a trans versely adjustable sight at the other end ofthe plate, and a spring interposed bet-ween said sight and the pivot ofthe plate, said spring and plate being disposed within a mortise in thebarrel of a gun.

3. A sight for fire arms embodying a pivotally mounted plate, a thumbscrew near one end engaging the barrel and working through said platefor lowering it, a transversely adjustable sight at the other end of theplate, a spring interposed between said sight and the pivot of theplate, said spring and plate being disposed within a mortise in thebarrel of a gun, and means for moving said sight laterally with relationto the plate.

1. The combination with a gun barrel having a mortise and a transversegroove within said mortise, of a plate pivotally mounted in saidmortise, a spring within the mortise beneath the plate having one endengaged in said groove, means for moving the plate on its pivot, and asight carried by the end of the plate.

5. The combination with a gun barrel having a mortise and a transversegroove within i 1 ii. JPN-1V5 1 like said mortise, of a plate pivotallymounted in said mortise, a spring Within the mortise beneath the platehaving one end engaged in said groove, means for moving the plate on itspivot, a sight carried by the end of the plate, and means for adjustingsaid sight laterally.

6. The combination with a gun barrel having a mortise and a transversegroove Within said mortise, of a plate pivotally mounted in saidmortise, a spring Within the mortise beneath the plate having one endengaged in VI LU LOI l'lul said groove, means for moving the plate onits pivot, a sight carried by the end of the plate, and means foradjusting said sight 15 laterally, said sight being revolubly mounted.

Signed by us at Washington D. C. this 7th day of Sept. 1911.

GEORGE W. PEOK, JR. WILLARD M. FARROW, SR.

WVitnesses:

G. A. WILSON, E. G. EVANS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. O.

